2. Laboratory Safety http://wwitch.unl.edu/safety/hslabcon.html

4. SAFETY STARTS WITH YOU! Personal Protective Gear

5. Lab Safety Glasses or Goggles

6. Many states require by law that students wear approved safety goggles or safety glasses when in the lab. This is an absolute "MUST"! Avoid floppy garments; avoid things that dangle (necklaces,earrings) - these get tangled up in equipment or glassware and cause accidents Avoid long, loose hair styles for the same reason. When Bunsen burners are in use, long hair may catch on fire The Safety Code of most schools will not approve of open footwear; so avoid sandals, flip-flops, open-toed shoes

8. Goggles DO NOT do you any good if they are on top of your head

9. SAFETY STARTS WITH YOU! Safety Equipment

10. Safety Equipment: Fire Extinguisher

11. There are two main types of fire extinguishers: –carbon dioxide - good, general purpose extinguishers –dry chemical (powder) - used for difficult cases, say certain types of electrical fires. AVOID using a dry-chemical extinguisher on a fellow human being. The powder may get in the victim’s eye and cause irritation. Often, but not always, they carry different colors. In this case the carbon dioxide extinguisher is red, and the dry-chemical (powder) extinguisher is yellow. Read the tag to know which you will use. The tag also should show the date the extinguisher was last serviced. AHS has an ABC fire extinguisher. It is an all-purpose fire extinguisher and will put out all types of fires.

12. Safety Equipment: Fire Extinguisher

13. Locate the "KEY" (the round object) Twist the "KEY" to break the stiff Nylon retaining cord Then pull "KEY" out Do not merely attempt to pull the key straight out, unless you are very strong Raise the nozzle in order to direct the stream of carbon dioxide. Squeeze the handle to begin operation. The CO 2 will cool the fire and restrict the oxygen. The fire, lacking oxygen, should go out.

14. Safety Equipment: Fire Blanket

15. Pull the blanket out of the wall holder. Wrap it around the victim to smother the fire. DO NOT use the blanket for anything other than putting out fires. DO NOT use the safety shower if you are on fire. Running to the shower will fan the flames and you will be badly burned.

16. Safety Equipment: Eye Wash

17. If you get something from the lab in your eye - GET IT OUT IMMEDIATELY! Run some water through the eyewash fountain before you use it. Retract your eyelid (hold it open). Don’t squint—this restricts water access. We will not be able to get your contact lens out of your eye before the water is run over your eye – that is why contacts should not be worn during labs. Run fresh water over your eye for 15 to 20 minutes. Go to the school nurse immediately afterward.

18. Safety Equipment: First Aid Kit

19. If injured, IMMEDIATELY tell your teacher. Your teacher will determine appropriate action and will advise you of the necessary first aid. Do not wait until the end of the day to report an injury. Band-aids may be used temporarily for small injuries (say, a cut finger). If blood is in evidence – DO NOT TOUCH IT. Let the victim (if possible) apply his/her own bandage. If blood is on the floor or lab bench, let trained personnel do the clean-up.

20. Safety Equipment: Fume Hood

21. Not every school will have a fume hood available. If your school has a FUME HOOD— use the HOOD for reactions that give off vapors, especially smelly vapors. The draft of the HOOD will sweep away vapors so that the lab itself maintains reasonable air quality.

22. Safety Equipment: Safety Shower

23. The safety shower should be used for CHEMICAL BURNS ONLY. DO NOT use the safety shower for fires. You want to smother a fire so you use the safety blanket. Pull the handle - a deluge of water will result. Hopefully, there will be a floor drain close by to help with cleaning up the water. DO NOT PLAY WITH THE SHOWER. WE NEED IT AVAILABLE IN CASE OF AN EMERGENCY.

24. Safety: Broken Glass

25. IMMEDIATELY report any broken glass to your teacher. Follow your teacher’s instructions for proper clean-up and disposal. If you are told to sweep it up, dispose of it in the Broken Glass Box.

26. 7/2/201625 Rules and Symbols Glassware Safety Whenever you see this symbol, you will know that you are working with glassware. Eye and Face Safety Whenever you see this symbol, you will know that you are performing an experiment in which you must take precautions to protect your eyes and face by wearing safety goggles. Fire Safety Whenever you see this symbol, you will know that you are working with fire. Never use any source of fire without wearing safety goggles. Sharp Instrument Safety Whenever you see this symbol, you will know that you are working with a sharp instrument.

27. 7/2/201626 Rules and Symbols Lab Safety: Everyone is Responsible! Heat Safety Whenever you see this symbol, you will know that you should put on heat resistant gloves to avoid burning your hands. Electrical Safety Whenever you see this symbol, you will know that you are working with electricity in the lab. Chemical Safety Whenever you see this symbol, you will know that you are working with chemicals that could be hazardous. Animal Safety Whenever you see this symbol, you will know that you are working with live animals.

28. SAFETY STARTS WITH YOU! I want you to have a positive lab experience. Labs are an excellent way to learn the material because you get to have a hands-on approach to the topic. In order for all of us to be safe, we MUST all observe the safety rules and be courteous to the rest of our classmates.